Pregnant 6months postpartum

So i need to explain everything somehow. I just got a slight positive pregnancy test. According to my period tracker I should have ovulated today. My last period was March 2nd, but it hasnt been consistent. We had unprotected sex march 8th bc I was dumb and decided that there was no way i would be ovulating that close to my period, so why not. I wouldn’t have even taken a test but i had a few symptoms ( with my last pregnancy i had symptoms pretty early too) and then I had a dream about being pregnant🤦‍♀️ anyways yesterday i took a test and it was negative, took one today and i swear there was a second line for about a minute (in the timeframe) then it disappeared. Obviously going to wait a few days to a week and then retest, but does that make sense to anyone? Like should it even be positive yet? I saw you can test as little as 10 days after conception, but I wasn’t sure based on the timing of ovulation.